DataViews: Incorrect text position for empty items

[t-hamano]

Description

For templates, template items, and patterns with empty content, we would expect the DataViews to display "Empty {itemType}" in the center of the item.

Screenshot from WP 6.7:

But in the latest Gutenberg, it's placed in the top left:

I think this is not the intended layout, so we need to identify and fix the problem.

Step-by-step reproduction instructions

• Open the site editor.
• Create Templates, Template Parts, and Patterns with no content.
• Switch the layout to the grid layout.

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure

[t-hamano]

This issue appears to be caused by #67801.